write_sensu: initialize ret_str

Else we might free an uninitialized ptr
CID #81392

diff --git a/src/write_sensu.c b/src/write_sensu.c
index c427467..475354c 100644 (file)
--- a/src/write_sensu.c
+++ b/src/write_sensu.c
@@ -177,7 +177,7 @@ static void sensu_close_socket(struct sensu_host *host) /* {{{ */
 static char *build_json_str_list(const char *tag, struct str_list const *list) /* {{{ */
 {
        int res;
-       char *ret_str;
+       char *ret_str = NULL;
        char *temp_str;
        int i;
        if (list->nb_strs == 0) {